Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '736679f93a296725edd69542a5c716679fb1a23ae889ef4caa1e9fbad31dbef7' 
  AND token = 'Uvnq0H+YaD3ybYPdiH6qyclasdRpeHF8Qtd9mLNocEo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}